Pressure-relief apparatus for use in fermentation processes.



M. FERTL.

PRESSURE RELIEF APPARATUS FOR USE IN FERMENTATION PROCESSES.

APPLICATION FILED MAY719I4.

gggg, Patented Nov. 14, 1916.

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APPLICATION FILED MAY 7, I9I4.

1,205,086. l Patented Nov. 14, 1916.

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MICHAEL FERTL, OF SCHWABACI-I, NEAR NUREMBERG, GERMANY.

PRESSURE-RELIEF APPARATUS FOR USE IN FERIJIENTATION PROCESSES.

Specification of Letters Patent.

Patented Nov. 14, 1916.

Application led May 7, 1914. Serial No. 837,018.

To all whom t may concern Be it known that I, MICHAEL FERTL, of Schwabach, near Nuremberg, Bavaria, Germany, have invented an Improvement in or Relating to Pressure-Relief Apparatus for Use in Fermentation Processes, of which the following description, in connection with the accompanying drawings, is a specification.

It is known to use in the manufacture of beer and the like pressure relief apparatus in which mercury is carried in a bent tube through which the gasses generated by fermentation pass when they reach a sufficiently high pressure. In order to enable the gases to escape without disturbing the mercury too much, a large number of stops are arranged in a staggered series one above another in the outlet branch of the tube. These stops act as bubble breakers and subdivide the gas-bubbles rising through .the mercury into a number of smaller bubbles which can rise more easily through the mercury. v

This invention relates to an improved construction of such apparatus, and comprises the arrangement of ribs in the outlet branch containing the bubble breakers, the said ribs being disposed laterally of or between the breakers which they divide into series and thus form rising conduits which inclose or pass through the series of breakers and are connected to the latter by slots. Owing to this construction, a very steady passage of' the gases through the branch is insured, and when an excessive increase of pressure takes place, a quick discharge of the gases is insured, without the column of mercury being greatly agitated.

A construction according to this invention is illustrated in the accompanying drawings in which- Figures l, 3 and 5 are front elevations, while Figs. 2, 4 and 6 are cross-sections respectively on lines A-A, B-B and C-C, and Fig. 7 is a side elevation.

In the outlet branch comprising a boxlike casing 2 covered by a transparent plate 6 and a frame -thesaid branch having at the back the inlet branch l which communicates through the opening 8 with the boxare arranged in staggered series bubble breakers 5 separated from each other by narrow intervals 4. According to this invention, in addition to the breakers, ribs are provided which divide the former into series and at the same time form rising conduits communicating by slots with the series of breakers.

According to the construction shown in Figs. l and 2, in the outlet branch, near one side, a zig-zag shaped rib l0 is arranged which forms with one wall of the box a rising conduit'which is also lled with breakers and communicates through an opening 9 with the series of breakers separated.

According to the construction shown in Figs. 3 and 4, laterally of, and between, the breakers zig-Zag ribs l0 are arranged which also form rising conduits and communicate by a slot 9 with the series of breakers divided ofI". The lateral ledges form with the wall of the box Ziz-zag shaped conduits 11.

The construction shown in Figs. 5 and 6,-

has an arrangement of ribs l0 straight at one side and subdivided by slots 9". The outer ribs are at a little distance from the wall of the box so that straight conduits 12 are produced, which like the conduit 12 formed by the central ribs, extend upward and lead the gases to the outlet opening 3, while the liquid can flow back around the bubble breakers and through the openings in the ribs.

I-Iaving now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is In a pressure relief apparatus of the character described, in combination, a-casing, an outlet branch in said casing, bubble breakers and ribs in said branch, said ribs forming with the wall of the casing a rising conduit passing through said breakers and communieating therewith by slots, and auxiliary breakers in said conduit, substantially as described and Jfor the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

MICHAEL FERTL. Witnesses:

GEORG GEITNER, HEINRICH Fm'IH.

Copies of this patent may be obtained for five cents each, by addressing the commissioner of Patents, Washington, .'D. C. 

